Lock.



PATENTED SEPT. 1 3

B. PHELPS.

LOOK.

'APPLIGATION FILED DBO. 4, 1903.

3 SHEETS-SHEET 1.

N0 MODEL.

4 11km oes- PATENTED SEPT. 13, 1904.

B. PHELPS.

LOCK.

APPLICATION FILED DEC. 4, 1903.

3 SHEETS-SHEET 2.

N0 MODEL.

PATENTED SEPT. 13

B. PHELPS.

LOOK.

APPLICATION FILED DEO; 4, 1903.

3 SHEETSSHBET 3.

N0 MODEL.

IN I Hill mmunummmm IHI Patented September 13, 1904.

PATENT Trice.

BYRON PHELPS, OF SEATTLE, WASHINGTON.

LOCK.

SPECIFICATION forming part of Letters Patent No. 762,769, datedSeptember 13, 1904-.

Application filed December 4, 1903. Serial No. 183,819. (No model.)

My invention has particular utility in connection with such looks as areused for bathroom or bed-room doors.

The said lock may be operated by either knob, or the inside knob may beemployed without the use of any separate instrumentality for the purposeof throwing a locking device into such position that the outer knob isheld against rotation.

I also provide means whereby although the outer knob is locked againstrotation the same may be unlocked by means of a suitable key introducedinto a cylinder-lock in said knob.

In the drawings,Figure 1 isa plan view of my lock, showing in horizontalsection a portion of the door and door-casing with the keeperplateapplied to the latter. Fig. 2 is a vertical section of my lock, showingcertain parts in elevation. of the lock, showing certain parts inelevation. Fig. 4c is a side elevation of the lock with one of theescutcheon-plates and part of the frame removed. Figs. 5, 6, and 7 areviews of the roll-back or latch operating and controlling mechanism,illustrating different positions of the same. Figs. 8, 9, and 10 areviews of detached details of construction. a view of the outer knobdetached'and shown partly in section. Fig. 12 is a view of the innerknob detached. Fig. 13 is an end elevation of Fig. 11 looking from rightto left, portions of said figure being broken away. Fig. 14 is an endelevation of Fig. 12 looking from left to right. Fig. 15 is a plan viewof Fig. 3 is a horizontal section Fig. 11 is the lock-frame with all ofthe lock mechanism removed therefrom.

I will proceed to describe the particular form of my invention shown inthe accompanying drawings.

The lock-frame comprises side plates 1 2, spaced apart to a sufficientdistance and properly connected together.

' 3 is an end or face plate which may provide a connection for said sideplates 1 2 at the face of the lock.

4 11 are tubular bearings in which the knobshanks are revolubly mounted.

5 is a bridge connecting the inner end of the frame-plates 1 2.

6 is a second bridge, which may connect said side plates 1 2 at a pointapproximately midway in their length.

42 is a space between the ends of the tubular bearings 4 41 and in whichspace the rollbacks are located.

A latch bolt or head 8 is pivotally mounted at 81 on the frame.

82 is a latch-slide connected by a pin 83 to the latch bolt or head 8.The pin 83 may be carried by the latch-bolt. The latch-slide 82 may havea slot 84, through which the pin 83 passes, so that the latch-bolt 8 maybe pressed back without moving the latch-slidefor example, when the doorcloses. The latch-slide 82 has bifurcated ends 85 85, which may havehook-like extensions 86 86 to be engaged by roll-backs.

9 is a roll-back controlled by the knob designed for the outside of thedoor..

10 is a roll-back which is controlled by the knob designed to be placedon the inside of the door and also by a key-controlled mech anismwhichmay be carried in the outer knob.

It will be noticed that the roll-back 9 has two arms extendingoppositely from its axial center, whereas the roll-back 10 has but onearm. The purpose of providing only one arm on the roll-back 1O is'toenable said roll-back to be used as a lock or stop and also as a meansfor retracting the latch-bolt. The operation of the roll-backs and thefunctions of each will be more fully described farther on.

11 is a spring which may surround the latchslide 82 between the latchbolt or head and the bridge 6. The function of the spring is to normallythrow the latch bolt or head 8 outwardly. The bridge 6 serves asastationary abutment against which one end of the spring 11 may'take itsbearing.

12 13 are escutcheon-plates. The escutcheon-plate 12 may be fixedlysecured in any convenient way to the frame which carries thelatch-operating mechanism. The escutcheonplate 12'may, however, slide toand fro on the cylindrical bearing 41.

14 is the outside knob.

15 is the inside knob.

The knob 14 may carry a cylinder-lock 141.

142 is a spindle operated by the key designed to fit the lock 141.

143 is the knob-shank of the knob 14. 144 is an-annular recess thereinand toward the inner end thereof.

151 is a knob-shank for knob 15. 152 is an annular recess therein towardthe inner end.

145 represents notches in the end of the knob-shank 143, (see Fig.13,)and 153 represents notches in the end of the knob-shank 151. Thesenotches 145 and 153 are designed to receive the roll-backs 9 10,respectively.

The roll-backs when in place are located in the recess 42 between theinner ends of the tubular bearings 4 41. That part of each roll-backwhich lies at the end of each knobshank 143 and 151 is slightlyenlarged, so as to fit into the enlarged space between the notches 145on the knob-shank 143 and the notches 153 on the knob-shank 151. Theends of the roll-back 9 project on opposite sides of the knob-shank 143.The single end of the roll-back 10 projects on one side of theknob-shank 151.

17 is a key which may be located in a notch 42 in a part of the frame,said key projecting into the annular groove 144 in the knob-shank 143,so as to prevent the same from becoming accidentally disengaged. Asimilar key may fit in a recess 43 on the frame to project into theannular groove 152 in the knob-shank 151 and hold it against accidentaldetachment. A small plate 51 may stand above the keys 17 and be held inplace by means of a cotterpin 52, the function of said plate 51 being tohold the keys in place, the said plate resting in recesses 171 in eachof the keys 17.

87 is a spring which may be carried by the latch-slide 82, the free endof said spring resting against the end of the roll-back 10 tofrictionally hold the same in either of its operative positionshereinafter described.

88 is an abutment on the latch-slide 82. The abutment 88 has asupporting-shoulder, the function of which will be hereinafterdescribed.

The knob-shanks 143 151 are rotatively supported in the tubular bearings4 41.

8. (See, for example, the position of the rollback in Fig. 7.) Theperson on the inside of the door may by turning the knob 15 in theright-hand direction cause the retraction of the latch bolt or head 8through the medium of the end of the roll-back 10 and the latchslide 82.(See the position of the roll-back 10 in Fig. 6.) Should, however, theperson on the inside of the door turn the handle 15 to the left, he willcause the single-ended roll-back 10 to rotate from the positionindicated in Fig. 4 to the position indicated in Fig. 5, in which thesaid roll-back rests upon the supporting-shoulder of the abutment 88,while said abutment also stands in front of said roll-back. When in thisposition, the roll-back serves to block the retraction of thelatch-slide 82. Hence the outer knob cannot be rotated, but ispractically locked.

The spring 87 is so shaped as to yieldingly hold the end of theroll-back 10 in either of its operative positions for example, theposition shown in Fig. 4 or the position shown in Fig. 5. The person onthe outside of the door can by means of a proper key cause the rotationof the spindle 142. This spindle 142 projects freely through an openingin the roll-back 9, but is in such engagement with the roll-back 10 thatwhen said spindle 142 is rotated it will cause a similar rotation of theroll-back 10. By this means said roll-back 10 may be rotated from theposition indicated in Fig. 4to that indicated in Fig. 5, or Vice versa.So. also, by means of said key the roll-back 10 may be moved from theposition indicated in Fig. 4 to the position indicated in Fig. 6.

From the foregoing it will be seen that the person on theinside of thedoor may either retract the latch-bolt 8 by turning the knob in onedirection or look the same by turning it in the opposite direction. Theperson on the outside of the door may when the roll-back 10 is in theposition shown in Fig. 4 retract the IIO latch-bolt by rotating theouter knob in either and keeper-plate are first applied to a door.

the rounded end of the latch-bolt will engage the edge of the keeper ata point intermediate in'the length of the former rather than at its rearedge. The consequence is 'that when the door or the door-casing shrinks,so as to leave a slight space between the edge of the door and thecasing, the latch-bolt moves ahead or projects slightly more out of thelock-frame than indicated in Fig. 1, and as a result the eccentric orcam face of the latch-' bolt 8 will engage with the edge of the recessin the keeper-plate when the door is closed, and thus hold it firmly inits closed position against rattling. It is obvious that were therounded face of the latch-bolt 8 concentric with the pivoted point 81this action would not take place, and the shrinkageof the door or thedoor-casing would result in a looseness between the latch bolt and thekeeper plate which would permit of the rattling of the door.

Obviously this lock possesses all of the advantages of any lock and theadditional advantages of being able to lock the door on the inside bythe use of the same means by which the latch is operated, it beingmerely necessary to reverse the direction of rotation of the insideknob.

What I claim is 1. In a lock in combination, latch mechanism comprisinga latch bolt or head, an inner and an outer rotatable knob-shank,bolt-actuating means operated thereby to move said bolt, and a lockingmeans operated by the inner knob-shank to lock said bolt againstretraction.

2. In a lock in combination, latch mechanism comprising a latch bolt orhead, a plurality of knob-shanks, a bolt-actuating device car ried byeach knob-shank whereby by the rotation of either knob-shank the boltmay be operated and mechanism operated by the inner knob-shank andcooperating with the bolt to lock the latter against retraction.

3. In alock in combination, a latch mechanism comprisinga latch bolt orhead, a plurality of rotatable knob-shanks, bolt-actuating means carriedby each of said knob-shanks, one of the said means being arranged toretract said latch bolt or head when its shank is rotated 5. In a lockin combination, latch mechanism comprising a latch bolt or head, aplurality of rotatable knob-shanks, a roll-back carried by one of thesaid'shanks and engaging said latch mechanism to retract the same ifsaid shank is rotated in either direction, another rollback carried bythe outer knob-shank and cooperating with the latch mechanism to retractthe latch bolt or head when the last-mentioned shank is rotated in onedirection, said roll-back serving to block said latch mechanism againstretraction by the other roll-back when said shank is rotated in theopposite direction.

6. In a lock in combination, latch mechanism comprising a latch bolt orhead, aplurality of rotatable knob-shanks, a roll-back carried by one ofthe said shanks and engaging said latch mechanism to retract the samewhen said shank is rotated in either direction, a second roll-backcarried by the other knob-shank and cooperating with the latch mechanismto retract the latch bolt or head when the lastmentioned shank isrotated in one direction, said second roll-back serving to lock saidlatch mechanism against retraction by the first-mentioned roll-back,when said shank is rotated in the opposite direction, said secondrollback extending on one side only of its supporting-shank.

7 In a lock in combination, latch mechanism comprisinga latch bolt orhead, a plurality of rotatable knob-shanks, a roll-back carried by oneof the said shanks and engaging said latch mechanism to retract the sameif said shank is rotated in either direction, a second roll-back carriedby the other knob-shank and cooperating with the latch mechanism toretract the latch bolt or head when the last-mentioned shank is rotatedin one direction, said roll-back servingto block said latch mechanismagainst retraction when said shank is rotated in the opposite direction,the last-mentioned roll-back extending on one side only of itssupporting-shank, and an abutment on the latch mechanism to act as astop for said locking roll-back when the latter is in its lockingposition.

8. In a lock in combination, latch mechanism comprisinga latch bolt orhead, a plurality of rotatable knob-shanks, bolt-actuating means carriedby the outer knob-shank arranged to operate said latch mechanism whensaid outer knob-shank is rotated in either direction, means carried bythe inner knobshank to retract the latch mechanism when said knob-shankis rotated in one direction, said means cooperating with the latchmechanism to lock the outer knob-shank against rotation when saidknob-shank is turned in the opposite direction, and separate means onthe same side of the door as the locked knobshank to unlock said parts.

9. In a lock in combination, latch mechanism comprising a latch bolt orhead, a plurality of rotatable knob shanks, bolt actuating means carriedby the outer knob-shank arranged to operate said latch mechanism Whensaid outer knob-shank is rotated in either direction, means carried bythe inner knobshank to retract the latch mechanism When said knob-shankis rotated in one direction, and to cooperate With the latch mechanismto lock the outer knob-shank when said knobshank is turned in theopposite direction and key-controlled means on the same side of the dooras the locked knob-shank to operate the inner knob-shank to release andretract the latch mechanism.

10. In a lock in combination, latch mechanism comprising an outer knob-shank and means coacting therewith to operate said latch mechanism Whensaid knob-shank is turned in either direction, an inner knob-shank andmeans carried thereby to either operate said latch mechanism or lock thesame against operation by the first-mentioned knob-sh ank andsupplemental key-controlled means accessible from the same side of thelook as the locked knob-shank and cooperating With the inner knob-shankwhereby the latter maybe turned in either direction.

Signed at New York, N. Y., this 3d day of December, 1903.

BYRON PHELPS. Witnesses:

R. C. MITCHELL, L. VREELAND.

